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\includegraphics[max width=\textwidth, alt={}, center]{28562a1b-ec9a-40d2-bbb3-729770688971-2_476_714_744_719}
Three coplanar forces of magnitudes \(15 \mathrm {~N} , 12 \mathrm {~N}\) and 12 N act at a point \(A\) in directions as shown in the diagram.
- Find the component of the resultant of the three forces
(a) in the direction of \(A B\),
(b) perpendicular to \(A B\). - Hence find the magnitude and direction of the resultant of the three forces.